Home / 345,908.30-518,862.45-121,522.10

Finding the Fourth Proportional to 345,908.30, 518,862.45 and 121,522.10

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Solution

The fourth proportional to 345,908.30, 518,862.45 and 121,522.10 is: 182,283.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,908.30 : 518,862.45 = 121,522.10 : x
  2. Step 2: Convert to fraction form
    345,908.30/518,862.45 = 121,522.10/x
  3. Step 3: Cross multiply
    345,908.30x = 518,862.45 × 121,522.10
  4. Step 4: Simplify right side
    345,908.30x = 63,053,254,535.15
  5. Step 5: Solve for x
    x = 63,053,254,535.15/345,908.30
  6. Step 6: Final answer
    x = 182,283.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.